Jamaica

The new president of the World Anti-Doping Agency had a simple-sounding new year resolution: “I just want to make sport cleaner.” Sir Craig Reedie knows he will never eradicate doping. Just a month into his new role, he says: “People still cheat and that is regrettable.”

They call him "Healing Hans", and as Usain Bolt prepared to move on to part two of his Olympic legend-making mission in London yesterday, he singled out Dr Hans Wilhelm Müller-Wohlfhart for getting him on track for a back-to-back sprint double at the Games.

As Dai Greene crossed the finish line in the London 2012 centrepiece arena last night, he clasped his hands to his face and dropped to the ground. He remained there for a good while, a picture of despair – lying on his back, his hands clasped to his head. The captain of the British track and field team thought he had blown his big Olympic chance. Only the first two finishers in the three semi-finals of the 400m hurdles were guaranteed a place in tomorrow's final and Greene had crossed the line fourth in the opening race.

So how has Yohan Blake been preparing for his big showdown with Usain Bolt, the most keenly-anticipated Olympic 100m since big bad Ben Johnson met Carl Lewis in Seoul in 1988? Has the man Bolt calls ‘The Beast’ been winding himself up for the blue riband event of the 2012 Games - pacing his room in the Olympic Village, and stamping his feet, with steam coming out of his nostrils?